What does it mean that part of my mesh is darker grey in edit mode? Boolean Problems
@Dimali was correct, there appears to be two faces on top of each other that share MOST of the same edges, but not these two.



I discovered this after trying to select the edge loop and those two would not be included.



Deleting those two turns the mesh a uniform grey.





Now, the edgeloops go all the way around and I can start making quads by grabbing two vertices and using J



there is probably a simpler way to "quadify" this but I haven't figured it out yet.